AD7985BCPZ - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

AD7985BCPZ
Manufacturer

ADI
ChipWorker Part#

CW2628496
Category

Analog to Digital, ADC IC
Package

LFCSP-20
Description

ANALOG DEVICES AD7985BCPZ Analog to Digital Converter, SAR, 16Bit, 2.5MSPS, Single, 4.75V, 5.25V, CSP
Documentation

Datasheet

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AD7985BCPZ Specifications

Attribute	Attribute Value

Part Number	AD7985BCPZ
Manufacturer	ADI
ChipWorker Part#	CW2628496
Category	Analog to Digital, ADC IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	20 Pin
Case/Package	LFCSP-20
Supply Voltage (DC)	4.75V (min)
Number of Circuits	1 Circuit
Number of Channels	1 Channel
Number of Bits	16 Bit
Power Dissipation	28 mW
Sample Rate	2.5 Msps
Resolution (Bits)	16.0 Bit
Number of ADCs	1 ADC
Number of Inputs	1 Input
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	33 mW
Number of Input Channels	1 Channel
Supply Voltage (Max)	5.25 V
Supply Voltage (Min)	4.75 V
Input Voltage	4.096 V
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Size-Length	4 mm
Size-Width	4 mm
Size-Height	0.95 mm
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Tray
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
Mil-Spec	No
REACH SVHC Compliance Edition	2015/12/17

Product Description

Product Details
The AD7985 is a 16-bit, 2.5 MSPS successive approximation analog-to-digital converter (SAR ADC). It contains a low power, high speed, 16-bit sampling ADC, an internal conversion clock, an internal reference (and buffer), error correction circuits, and a versatile serial interface port. On the rising edge of CNV, the AD7985 samples an analog input, IN+, between 0 V and REF with respect to a ground sense, IN−. The AD7985 features a very high sampling rate turbo mode (TURBO is high) and a reduced power normal mode (TURBO is low) for low power applications where the power is scaled with the throughput.
In normal mode (TURBO is low), the SPI-compatible serial interface also features the ability, using the SDI input, to daisy-chain several ADCs on a single 3-wire bus and provide an optional busy indicator. It is compatible with 1.8 V, 2.5 V, and 2.7 V supplies using the separate VIO supply.
The AD7985 is available in a 20-lead LFCSP with operation specified from −40°C to +85°C.
Applications
Battery-powered equipment
Communications
ATE
Data acquisition systems
Medical instruments
### Features and Benefits
16-bit resolution with no missing codes
Throughput: 2.5 MSPS (TURBO high), 2.0 MSPS (TURBO low)
Low power dissipation
15.5 mW at 2.5 MSPS, with external reference
28 mW at 2.5 MSPS, with internal reference
INL: ±0.7 LSB typical, ±1.5 LSB maximum
SNR
88.5 dB, with on-chip reference
90 dB, with external reference
4.096 V internal reference: typical drift of ±10 ppm/°C
Pseudo differential analog input voltage range
0 V to VREF with VREF up to 5.0 V
Allows use of any input range
See data sheet for additional features

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